2018 GMC YUKON XL change time

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
126 Instruments and Controls liftglass is opened while the rear
wiper is on, the wiper returns to the
parked position and stops.
Rear Wiper Arm Assembly
Protection
When using an automatic car wash,
move the rear wiper control to OFF
to disable the rear wiper. In some
vehicles, if the transmission is in
N (Neutral) and the vehicle speed is
very slow, the rear wiper will
automatically park under the rear
spoiler.
The wiper operations return to
normal when the transmission is no
longer in N (Neutral) or the vehicle
speed has increased.
Reverse Gear Wipes
If the rear wiper control is off, the
rear wiper will automatically operate
continuously when the shift lever is
in R (Reverse), and the front
windshield wiper is performing low
or high speed wipes. If the rear
wiper control is off, the shift lever is
in R (Reverse), and the front
windshield wiper is performing interval wipes, then the rear wiper
automatically performs interval
wipes.
This feature can be turned on or off.
See Vehicle Personalization 0 158 .
The windshield washer reservoir is
used for the windshield and the rear
window. Check the fluid level in the
reservoir if either washer is not
working. See Washer Fluid 0 296 .
Compass The vehicle may have a compass
display on the Driver Information
Center (DIC). The compass receives
its heading and other information
from the Global Positioning
System (GPS) antenna, StabiliTrak,
and vehicle speed information.
The compass system is designed to
operate for a certain number of
miles or degrees of turn before
needing a signal from the GPS
satellites. When the compass
display shows CAL, drive the
vehicle for a short distance in an
open area where it can receive a
GPS signal. The compass system will automatically determine when a
GPS signal is restored and provide
a heading again.
Clock Setting the Time and Date with
Center Stack Controls To set the time or date:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select the desired function.
3. Turn the MENU knob to
increase or decrease the value.
4. Press the MENU knob to go to
the next value. After the last
value is selected, the system
will update and return to the
Settings menu. Press
o BACK
to go to the last menu and
save the changes.
Auto Set requires an active
connection to OnStar.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 127If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.
To set the clock display:
1. Select SETTINGS from the
Home Page, then select Time
and Date.
2. Select Clock Display.
3. Turn the MENU knob to Off
or On.
4. Press the MENU knob to
select.
Press
o BACK to go to the last
menu and save the changes.
Setting the Time and Date with
Infotainment Display Controls To set the time:
1. Touch SETTINGS on the Home
Page, then touch Time
and Date. 2. Touch Set Time, then touch
«or
ª to increase or decrease
hours, minutes, and AM or PM.
Touch 12 – 24 Hr for 12 or
24 hour clock.
3. Touch
S to go back to the
previous menu.
Auto Set requires an active
connection to OnStar.
If auto timing is set, the time
displayed on the clock may not
update immediately when driving
into a new time zone.
To set the date:
1. Touch SETTINGS on the Home
Page, then touch Time
and Date.
2. Touch Set Date, then touch
«or
ª to increase or decrease
month, day, or year.
3. Touch
S to go back to the
previous menu. To set the clock display:
1. Touch SETTINGS on the Home
Page, then touch Time
and Date.
2. Touch Clock Display, then
touch Off or On to turn the
clock display off or on.
3. Touch
S to go back to the
previous menu.
Power Outlets Power Outlets 12-Volt Direct
Current
Accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone, MP3
player, etc.
The vehicle may have up to five
accessory power outlets:
Vehicles with a Center Console
.
One in front of the cupholders on
the center console
.
One inside the center storage
console
.
One on the rear of the center
storage console

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
152 Instruments and Controls or miles per gallon (mpg). This
number is calculated based on the
number of L/100 km (mpg) recorded
since the last time this menu item
was reset. This number reflects only
the approximate average fuel
economy that the vehicle has right
now, and will change as driving
conditions change.
The Average Speed display shows
the average speed of the vehicle in
kilometers per hour (km/h) or miles
per hour (mph). This average is
calculated based on the various
vehicle speeds recorded since the
last reset of this value.
Press and hold
V while this display
is active to reset the trip odometer,
the average fuel economy, and the
average speed. Or press
p and
select reset in the menu.
Fuel Range and Instantaneous
Fuel Economy : Shows the
approximate distance the vehicle
can be driven without refueling.
LOW will be displayed when the
vehicle is low on fuel. The fuel
range estimate is based on an
average of the vehicle's fuel economy over recent driving history
and the amount of fuel remaining in
the fuel tank. It also shows if the
Active Fuel Management is active
and in V4 mode, or inactive and in
V8 mode. See Active Fuel
Management 0 214 .
The Instantaneous Fuel Economy
display shows the current fuel
economy in either liters per
100 kilometers (L/100 km) or miles
per gallon (mpg). This number
reflects only the approximate fuel
economy that the vehicle has right
now and changes frequently as
driving conditions change.
Timer and Fuel Used : Can be
used as a timer. To start the timer,
press
V while this display is active.
The display will show the amount of
time that has passed since the timer
was last reset. To stop the timer,
press
V briefly while this display is
active and the timer is running. To
reset the timer to zero, press and
hold
V while this display is active. This also shows the number of
liters (L) or gallons (gal) of fuel used
since the last reset of this
menu item.
Oil Life : Shows an estimate of the
oil's remaining useful life.
If REMAINING OIL LIFE 99% is
displayed, that means 99% of the
current oil life remains.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
The oil should be changed as soon
as possible. See Engine Oil 0 283 .
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule. See Maintenance
Schedule 0 370 .
The Oil Life display must be reset
after each oil change. It will not
reset itself. Do not to reset the Oil
Life display at any time other than
when the oil has just been changed.
It cannot be reset accurately until
the next oil change. To reset the
engine oil life system, press and

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 153hold
V for several seconds while
the Oil Life display is active. See
Engine Oil Life System 0 285 .
Tire Pressure : Shows the
approximate pressures of all four
tires. Tire pressure is displayed in
either kilopascal (kPa) or in pounds
per square inch (psi). If the pressure
is low, the value for that tire is
shown in amber.
See Tire Pressure Monitor System
0 329 and Tire Pressure Monitor
Operation 0 330 .
Best Fuel Economy : Displays
average fuel economy, the best fuel
economy over the selected
distance, and a bar graph showing
instantaneous fuel economy.
Press
p to change the selected
distance. Press and hold
V while
this display is active to reset the
best fuel economy and average fuel
economy. This display can also be
reset by selecting reset in the menu.
Top Consumers : Shows a list of
the features that are currently
impacting the fuel economy, in order from highest to lowest. If a feature is
turned off, it will be removed from
the list.
Economy Trend : Shows history of
the Average Fuel Economy from the
last 50 km (30 mi). Each bar
represents about 5 km (3 mi) of
driving. During driving the bars will
shift to always reflect the most
recent distance on the right side.
Press and hold
V to clear the graph
or press
p to reset through
the menu.
ECO Index : Provides feedback on
the efficiency of current driving
behavior. The bar graph shows a
value that is based on current fuel
consumption compared to what is
expected from the vehicle with good
and bad driving habits. It also shows
if the Active Fuel Management is
active and in V4 mode, or inactive
and in V8 mode. See Active Fuel
Management 0 214 .
Engine Hours : Shows the total
number of hours the engine has run.
This display also shows the engine
idle hours. Trailer Brake : Displays on vehicles
with the Integrated Trailer Brake
Control (ITBC) system.
TRAILER GAIN shows the trailer
gain setting.
OUTPUT shows the power output to
the trailer any time a trailer with
electric brakes is connected. Output
is displayed in 0 to 10 bars. Dashes
may appear in the OUTPUT display
if a trailer is not connected.
Speed Signs : Shows sign
information, which comes from a
roadway database in the onboard
navigation.
Off Road : Displays vehicle pitch
and roll information, road wheel
angle, and four-wheel drive (4WD)
status.
Following Distance : Used to
select the alert timing for the
Forward Collision Alert (FCA). See
Forward Collision Alert (FCA)
System 0 246 .
Blank Page : Shows no
information.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
154 Instruments and Controls Transmission Fluid Temperature
Gauge : Shows the temperature of
the automatic transmission fluid in
either degrees Celsius (°C) or
degrees Fahrenheit (°F).
Head-Up Display (HUD)
{ WarningIf the HUD image is too bright or
too high in your field of view, it
may take you more time to see
things you need to see when it is
dark outside. Be sure to keep the
HUD image dim and placed low in
your field of view.
If equipped with HUD, some
information concerning the
operation of the vehicle is projected
onto the windshield. The image is
projected through the HUD lens on
top of the instrument panel. The
information appears as an image
focused out toward the front of the
vehicle. CautionIf you try to use the HUD image
as a parking aid, you may
misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
The HUD information can be
displayed in various languages. The
speedometer reading and other
numerical values can be displayed
in either English or metric units.
The language selection is changed
through the radio and the units of
measurement is changed through
the instrument cluster. See Vehicle
Personalization 0 158 and “ Cluster
Settings Menu ” under Instrument
Cluster 0 133 . HUD Display on the Vehicle
Windshield
The HUD may display some of the
following vehicle information and
vehicle messages or alerts:
.
Speed
.
Tachometer
.
Audio
.
Phone
.
Navigation
.
Collision Alert
.
Cruise Control
.
Lane Departure
.
Low Fuel

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Instruments and Controls 167Make sure the hand-held transmitter
has a new battery for quick and
accurate transmission of the
radio-frequency signal.
Programming the Universal
Remote System For questions or programming help,
see www.homelink.com/gm or call
1-800-355-3515.
Programming involves
time-sensitive actions, and may time
out causing the procedure to be
repeated.
To program up to three devices:
1. Hold the end of the hand-held
transmitter about 3 to 8 cm (1
to 3 in) away from the
Universal Remote system
buttons with the indicator light
in view. The hand-held
transmitter was supplied by the
manufacturer of the garage
door opener receiver.
2. At the same time, press and
hold both the hand-held
transmitter button and one of
the three Universal Remote
system buttons to be used to operate the garage door. Do
not release either button until
the indicator light goes from a
slow to a rapid flashing light.
Then release both buttons.
Some garage door openers
may require substitution of
Step 2 with the procedure
under “ Radio Signals for
Canada and Some Gate
Operators ” later in this section.
3. Press and hold the newly
programmed Universal Remote
system button for five seconds
while watching the indicator
light and garage door
activation.
.
If the indicator light stays on
continuously or the garage
door moves when the
button is pressed, then
programming is complete.
There is no need to
complete Steps 4 – 6.
.
If the indicator light does
not come on or the garage
door does not move, a
second button press may
be required. For a second time, press and hold the
newly programmed button
for five seconds. If the light
stays on or the garage door
moves, programming is
complete.
.
If the indicator light blinks
rapidly for two seconds,
then changes to a solid light
and the garage door does
not move, continue with
programming Steps 4 – 6.
Learn or Smart Button
4. After completing Steps 1 – 3,
locate the Learn or Smart
button inside the garage on the
garage door opener receiver.
The name and color of the
button may vary by
manufacturer.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
170 Lighting
Lighting Exterior Lighting Exterior Lamp Controls . . . . . . . 170
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 172
Headlamp High/Low-Beam
Changer . . . . . . . . . . . . . . . . . . . . 172
Flash-to-Pass . . . . . . . . . . . . . . . . 172
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . 173
Automatic Headlamp
System . . . . . . . . . . . . . . . . . . . . . . 173
Hazard Warning Flashers . . . . . 174
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . 174
Fog Lamps . . . . . . . . . . . . . . . . . . . 175 Interior Lighting Instrument Panel Illumination
Control . . . . . . . . . . . . . . . . . . . . . . 176
Dome Lamps . . . . . . . . . . . . . . . . . 176
Reading Lamps . . . . . . . . . . . . . . 176
Lighting Features Entry Lighting . . . . . . . . . . . . . . . . 177
Exit Lighting . . . . . . . . . . . . . . . . . . 177
Battery Load Management . . . 177
Battery Power Protection . . . . . 178
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 178
Exterior Lighting Exterior Lamp Controls
The exterior lamp control is on the
instrument panel to the left of the
steering wheel.
There are four positions:
O : Turns off the automatic
headlamps and Daytime Running
Lamps (DRL). Turn the headlamp
control to
O again to turn the
automatic headlamps or DRL
back on.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Lighting 173If the headlamps are in the
automatic position or on low beam,
the high-beam headlamps will turn
on. Depending on the type of
headlamp, they will either turn off
after a short duration or stay on as
long as you hold the lever toward
you. The high-beam indicator on the
instrument cluster will come on.
Release the lever to return to
normal operation.
Daytime Running
Lamps (DRL) DRL can make it easier for others to
see the front of the vehicle during
the day. Fully functional DRL are
required on all vehicles first sold in
Canada.
The DRL system comes on when
the following conditions are met:
.
The ignition is on.
.
The exterior lamp control is
in AUTO.
.
The transmission is not in
P (Park). .
The light sensor determines it is
daytime.
When the DRL system is on, only
the DRL are on. The taillamps,
sidemarker lamps, instrument panel
lights, and other lamps will not
be on.
When it begins to get dark, the
automatic headlamp system
switches from DRL to the
headlamps.
To turn off the DRL, turn the exterior
lamp control to
O and then release.
For vehicles first sold in Canada, off
will only work when the vehicle is
parked.
Automatic Headlamp
System When the exterior lamp control is
set to AUTO and it is dark enough
outside, the headlamps come on
automatically. There is a light sensor on top of the
instrument panel. Do not cover the
sensor, otherwise the headlamps
will come on when they are not
needed.
The system may also turn on the
headlamps when driving through a
parking garage or tunnel.
If the vehicle is started in a dark
garage, the automatic headlamp
system comes on immediately. If it
is light outside when the vehicle
leaves the garage, there is a slight
delay before the automatic
headlamp system changes to the
DRL. During that delay, the
instrument cluster may not be as
bright as usual. Make sure the
instrument panel brightness control